Fountain-pen.



T. TAMMURA.

FOUNTAlN PEN'. APPLlCATloN FILED ocT.19.1v916.

Patented May 2l,1918.

` FTQE.

TAGIRO TANIMURA, 0F ROCK SPRINGS, WYOMING.

FOUNTAIN-PEN.

Application led October 19, 1916.

To all 'whom t may concern:

Be it known that I, TAGIRO TANIMURA, a citizen of Japan, residing atRock Springs, in the county of Sweetwater and State of Wyoming, haveinvented certain new and useful Improvements in Fountain-Pens; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to self-filling fountain pens and moreparticularly to that type which are equipped with compressible sacks ofsoft rubber adapted to store the ink and to lill themselves by suctionafter they have been suitably compressed.

The principal object of the invention is to provide simple and eiiicientmeans for uniformly compressing the ink sack throughout its length toeffectively empty it of air when it is to be filled with ink.

Another object is to provide means for forcibly ejecting a limitedamount of ink when the pen point is dry, thus starting the ink to flow.

'Another object is to provide a device of this character having a leverso constructed and mounted that when one end thereof is lowered to itseXtreme limit, it will eject all the air from the ink reservoir and theother end when so lowered will eject a limited quantity of ink from saidreservoir.

Another object is to provide a device of this character in which twolevers of the first andthird class are employed for cooperation toquickly expel the air from the reservoir with a minimum amount ofexertion 'and in which the lever of the third class operates to hold theother lever normally in closed inoperative position.

This and other objects of the invention are accomplished by providing aframe in which the fulcrums of the levers are mounted and which with theconnected parts is inserted as a unit in a longitudinal slot providedfor its reception in the pen barrel.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in preciseembodiment of the invention herein disclosed may be made Specificationof Letters Patent.

barrel 1 and has vbar 16 which latter Patented May 21, 1918. Serial No.126,597.

within the scope of what is claimed without departing from the spirit ofthe invention.

In the accompanying drawings Figure l represents a top plan view of afountain pen equipped with this attachment;

Fig'. 2 is a longitudinal section thereof with the levers shown inclosed position;

Fig. 3 is a similar view of the pen barrel with the levers shown in openoperative position;

Fig. A is a similar view with the levers shown in the position forstarting the flowing of the ink when the pen point is dry;

Fig. 5 is a transverse section taken on the line 5-5 of Fig. 2;

Fig. 6 is a similar view taken on the line 6-6 of Fig. 2;

Fig. 7 is an enlarged detail plan view of the attachment detached; and,

Fig. 8 is a side elevation thereof.

In the embodiment illustrated, the filler constituting the invention isshown applied to a fountain pen comprising a barrel l fitted at one endto a holder 2 carrying a point 3 and a feeding tube 4. A soft rubber inksack or reservoir R extends through substantially the entire length ofthe bore of the its open end iitted to the inner end 5 of the holder 2in the usual manner.

The barrel 1 is slotted longitudinally at 6, the slot having an enlargedfinger space 7 intermediate of its ends.

The several elements of the attachment are united so as to be insertedas a single unit into the slot 6 of the pen barrel. This unit comprisesa frame 10 having side bars 11 and 12 equipped at their lower edges withlaterally projecting longitudinally eX- tending iianges 13 and 14 whichare adapted to fit in recesses 15 at the sides of the slot 6 on theinner face of the pen barrel so that when in assembled operativeposition, the inner face of the frame will be flush with the inner faceof the pen barrel to avoid any projections for contact with the pressureis of usual construction and lies between the reservoir and the frame10.

End bars 17 and 18 connect the opposite ends of the side bars 11 and l2and a flange 19 projects laterally from the lower edge of the front endbar 17 to fit a recess l5 at the rear end of the slot 6 on the innerface of the pen barrel. Thelower edge of the rear end bar 1S is spacedinwardly fromy the bottoms of the side bar flanges forming a seat 20 fora purpose to be described.

The flanges 13and.11 project at theirl rear ends beyond the cross bar 18to form attaching fingers 21 which are inserted in recesses 15 at therear end of the slot 6 on the inner face of thepen barrel.

'This frame 10 is of a height or depth corresponding to the thickness ofthe side walls of the pen barr.el s o that when ,the frame is insertedin the slot 6 with itsflanges dis-l posed in the recesses 15, 15 and 15,its inner and outer faces will be flush with the inner and outer facesof the pen barrel.

Pins22 and23 extendthrough the side bars 11 and 1 2of the frame near theoppositeendsthereof and enter the pen barrelon opposite sidesof the inlFig. 1. These pins perform the double functien of anchoring means forthe frame Eiland f fulcrums for twolevers 25 and 30 soon! to V' be I theside bars 11 and 12 ,have registering krecesses or notches 24 positionedto receive the head 31 ofthe lever 30 to provide for thepositioning ofthe upper face ofsaid lever flush with the upp'erfaceof the frame 10 andalso to permit saidheadfto be depressed into said recesses apredetermined distance i controlled by the depth of therece'sses whichare greater than thethickness of the, head for a purpose to bedescribed.

vThe leverv30. which will be termed the operating lever is a lever ofthefirst ,class and is fulorumed on thepin 23, being of a length equal tosubstantially one-half of. thelength of the framelO. This lever has aflat head 31 at its front end and a longitudinally: proiecting toe 32 atits rear end, said toerbeing-l designedto lit against the lower edgeof.the rear crossbar 18 between vthe anges lofthe side bars 11 and 12, saidcross bar serving as a stop to limit theclosing` movement of the lever7whereby its head31 is housed in the. recesses 24Ey with its lower innerface positioned so as `to be spaced from the bottoms of the recesses 2litoprovide for its being depressed into said recesses vwhen desired vtoaccomplish an object presently tobe described.

The, lever 25 which is a lever of the ,third class isfulcrumed lat oneend ,on the pin 22, its free end being deslgnedto engage the pressurebar 16 which is thepointof resistance of said lever 25.

thesame length `as the frarnelO.

Steltellv less ythe ,thickness of the front end bar v17 andthe frontendofg this lever beveledas. shown at 26 to fit a correspondingly beveledseat17/ von the inner, face of said. .bar.17.

This lever 25 hasthe rear portionlof its 'thereof which underlaps thelever 30ft0l t within the Yframe 10. so that Lits lower face slot 6 asshown clearly described. The upper edges of This lever, is sub thecut-away rear: `portion, of thelever1251 and of the lever 30whichoverlaps-said cutaway portion correspon dsto ,the depthsof theframe 10 so that vwhenin closedposition, the outer faces of said leversand frame.v will be arranged flush-witheach other.

The cut-anvayrear portion of the "lever 25 has a recess28 1n its outerface between its ends with a right-angular shoulder 2.9.for'med at thefront end of saidy recess, the bottom-` of said recess beinginclined'rearwardly andI outwardlyfrom said shoulder to facilitate theengagement of the toe 32 of the lever 30 when Athe latter; is swung.outward to open operative positi'omas shownlin Fig, 3. The

free end of'lever 25 ts .snugly betweentthe ends 21 of fianges 13 andl`oftheframe 10.

Tn the use of this attachment,v the vparts being inthe position shown inFigs.l 1 and 2,y and it is desired to deflate the ink reservoirpreparatory to filling said lreservoir withy ink.A all that isnecessaryis to `grasp the` head 3 1 of the lever 30 between ytheltipsofthe, thumb ,and 1forefinger. andmove said lever outwardlypg causing-@its .vtoefcarrying end to move inwardly against theunderlyp` ingportion of theflever 25 wherebythettoeof said lever 30 movestowardthefulc rumy of llever25 and forcessaid 1lever.inwardly until said toecemesl into, engagement with theslioulder v29 lat the end of the. recess28; of saidlev'er 25, which operates to. stop said lever 30bymeansofwhich said;leversarey held in interlocking. position. the lever25 bear-ingagainst the pressure bar 16 `fore-1A ing it againstthereservoir, therebyt deflating; it. This movementof theleverscompletely i empties said reservoirl andto fill it vwith inl@` all thatis necessaryisvr to subrnergethe.endv

of the fillertube l inink andthenfswing. ther lever 30 back into closedpositionywhich will r disengage its toe from theleven25 andpermit; thelatter to move into closed-p,osition under the action of theexpandingreservoin@ l/Vhenthe reservoir is filled,y the pressure bar,l

bearingfagainstthe toe-carrying .end of ,lever 30, V.operates to holdit,\ in closed/. position Reemst aeC1Clental.opening- Whenthe parte I A,.in this position,- the head31 of lever-30' outer face ycut away toadapt vthe portion is disposed in vthe recesses` 24k of the frame 10,

that V whenit is `desiredtofejeet zasmall quan,- y

i will be forced. againstthe lever. 25 andhold `the sameinclosedpositionand thisfflevelf,.A

.isole tity of ink from the reservoir, in order to start it to flowingwhen the pen point is dry, all that is necessary is to force said headinwardly thereby causing the lever 30 to bear against lever 25 and forceit inwardly a distance suilicient to eject a small quantity of ink fromthe reservoir, the movement of said lever being controlled by the spacebetween the inner face of head 31 and the bottoms of the recesses 24.

From the foregoing description, it will be seen that the lever 30operates both as a deflating lever and as an ink starting lever and thatthe pins 22 and 23 perform the double function of attaching means forsecuring the frame to the pen barrel and of fulcrums for the levers 25and 30.

While I have described the principle of operation of the invention,together with the device which I now consider to be the best embodimentthereof, I desire to have it understood that the device shown is merelyillustrative and that such changes may be made as are within the scopeof the claimed invention.

I claim l. An ink sack deflating device for fountain pens comprising apresser bar, a me1nber operable in two directions, and means associatedwith said bar and said member and being engaged by said member when thelatter is operated in one direction to force said bar into complete sackdeiiating position, said means being also engaged by said member whenthe latter is operated in the other direction to force said bar intopartial sack deflating position.

2. An ink sack deflating device for fountain pens comprising two levers,one being operable in two directions and when operated in one-directionyengaging the other lever to force the latter into complete sack delatingposition and when operated in the other direction engaging said otherlever to force the same into partial sack deiating position.

3. An ink sack deflating device for fountain pens comprising a leverfulorumed at one end, another lever fulcrumed intermediate of its ends,the fulcrums of said levers being relatively fixed and in spacedrelation, the last mentioned lever when closed overlapping the firstmentioned lever and having both of its ends operable to depress thelatter, and means for limiting the depression thereof by one of saidends.

4. An ink sack deflating device for fountain pens comprising an openrectangular frame having registering notches in the outer edges of theside bars thereof, a lever fulcruined at one end in one end of saidframe and extending longitudinally of the same, another lever fulcrumedintermediate of its ends at a point spaced inwardly' from the other endof said frame, and when closed, overlapping the first mentioned lever, ahead provided on one end of said lever and being disposed in saidnotches, said head forming a stop for limiting the movement of the lastnamed lever when the latter is actuated in one direction, and coactingelements carried by said levers for limiting lthe opening movement ofone relatively to the other when the last mentioned lever is actuated inthe other direction.

5. In a fountain pen, the combination of a barrel having a slot thereinand recesses communicating with said slot on the inner face of saidbarrel, a rectangular' open frame disposed in said .slot and havingflanges eX- tending laterally outwardly from the inner edges of thesides and ends thereof, said flanges being seated in said recesses, apair of spaced pins extending transverselyT through said frame andhaving their ends anchored in the pen barrel, levers fulcrumed on saidpins within said frame, one lever overlying the other, the overlyinglever engaging the other when opened to force the other into workingposition.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

TAGIRO TANIMURA.

Witnesses:

S. P. SNYDER, Roer. D. MURPHY.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

